Saving China's finless porpoise from the brink of extinction (Aug)
Researchers map key north-south divide in Australia's orca population (July)
Orcas filmed making tools out of kelp to give each other massages on the move (Jun)
Mandurah dolphins make surprise appearance in Bunbury after months of being missing (Feb)
Volunteer hopes beaching of dolphin calf off Bunbury beach was a 'freak accident (May)
Sighting of first orca calf at Ningaloo Reef in years gives hope to researchers (May)
Sperm whales drop 'bubble of poo' off WA to prevent orca attack in rarely recorded encounter (Mar)
Fishing line entanglements on the rise as two dolphins are found dead near Mandurah, WA (Mar)
Bunbury's Dolphin Discovery Centre goes into administration (Mar)
Speckles the rare piebald dolphin sighted by researchers off Hervey Bay (Feb)
Bremer Bay orcas 'healthiest on the globe' as numbers boom off Western Australia (Jan)
Pod of pink dolphins trapped in Bolivian river rescued and relocated (Dec)
Australian southern right whale's entire migration tracked for the first time (Sep)
New study finds dolphin mums use 'baby talk' just like humans (Jun)
Dolphins filmed in 'especially rare' Essex river sighting (Jun)
Ukrainian dolphins and sea lions find new home in Romanian aquarium (Apr)
Dolphins and humans both catch more fish when they work together, research in Brazil finds (Feb)
Monkey Mia dolphin family welcomes noisy new calf to mother Piccolo (Jan)
Irrawaddy dolphin sanctuary mulls ban on unsustainable fishing in Borneo (Dec)
Researchers find signs of Alzheimer's disease in dolphins (Dec)
Dolphins Whistle Their Names with Complex, Expressive Patterns (Nov)
Cameras strapped to dolphins capture surprise sea snake feast (Aug)
Shark Bay dolphins forming the equivalent of boy bands to attract a mate, scientists say (Jul)
Dolphins can identify their friends by taste, study shows for the first time (May)
In 2021, Scientists Identified a New Whale Species in the Gulf of Mexico (Apr)
Only two handfed dolphins left after spate of deaths at WA's Monkey Mia (Jan)